Menstruation is one of the signs of the development of the reproductive system in women. Menstruation states that women have reached the point of reproductive maturity ready to be fertilized, this is inseparable from Premenstrual syndrome which is a sign before menstruation. This study aims to determine the relationship between physical activity and symptoms of premenstrual syndrome. In this study using quantitative methods. Through 2 questionnaires of physical activity and premenstrual syndrome, the data obtained correlation between the dependent variable and the independent variable lies in the significance of the results of statistical calculations, namely the significance obtained is the Sig value. 0.195. Which has a number smaller than 0.05, therefore it is stated that there is no correlation between the two variables studied or the correlation in the two variables is not too significant or can be called weak. The conclusion is in line with the data obtained by the researcher, there is an influence of physical activity on premenstrual syndrome symptoms in women with data that 80% of students have a high level of physical activity and 68% of respondents stated that they had quite high premenstrual syndrome symptoms. This states that physical activity has an influence on premenstrual syndrome in female students, but the level of influence is not very significant in each individual.

Technological developments have positive and negative impacts. One of the negative impacts is the increasing amount of screen time children spend. So that children’s participation in learning physical education is disrupted. The purpose of this study, among others, is to see the effect of traditional games on the participation of elementary school students in learning physical education. The method used is quasi-experimental with one group pre-test and post-test design. The research sample amounted to 43 people, consisting of 20 male students and 23 female students. The sample is grade 5 students aged 10-11 years. This research instrument uses a sports participation questionnaire with a scale of 2 “yes” or “no.” the dimensions of the instrument include (1) Pre-implementation, (2) Implementation, and (3) Post-implementation/evaluation. The results showed a p-value = 0.000 < 0.05; this means that there is a difference between the average value of the pre-test and the average value of the post-test. This study concludes that traditional games affect the participation of elementary school students in learning physical education.

Karang Pule Public Health Center (PHC) in Mataram, the patient or the patient's family registers by coming directly to the puskesmas. This system causes patients or their families have to wait a long time and the danger is they are vulnerable to Covid-19 transmission. Another impact is frequent errors in the selection of the queue place. Queue place is divided into 2 parts, namely queue A and queue B. Queue A is for patients under 55 years old and queue B is for elderly people above 55 years. Some patients, especially the elderly who do not know their age, cause patients to choose the wrong place to queue and wait even longer. The research objective is to design an Android-based outpatient registration system. The methodology used in this design the application is Waterfall. Data collection techniques used such as observation, interviews, and literature studies. This research produced an application design where patients can see the queue number being served so that patients can estimate the time to come to the intended polyclinic.